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US 2026/0192328 A1Published application
Methods of producing coated optical substrates
AssigneeFlo Optics Ltd
InventorsIlan HIDANA, Tamir CHARTARIFSKY, Claudio ROTTMAN SAVION
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Abstract
Methods and systems for producing an optical construction on a polymeric optical substrate that is typically curved, one such method including: (a) microvalving drops of a liquid film-forming formulation onto an optical surface of the optical substrate, to form a wet layer; and (b) treating the wet layer to produce a dried transparent layer on the optical surface.
Claims18
A method of producing an optical construction on an optical substrate, the method comprising:
- (a) microvalving drops of a hardcoat formulation onto a curved, polymeric optical surface of the optical substrate, to form a wet hardcoat layer;
- (b) curing the wet hardcoat layer to produce a dried transparent layer on said optical surface;
- wherein the SAG number of said curved surface is at least 2 mm and at most 12 mm;
- wherein said hardcoat formulation has a 25° C. viscosity of at most 15 cP;
- and wherein at least one of an average diameter and a characteristic diameter of the microvalved drops (Ddrop) is within a range of 0.2 to 0.55 mm.
2 more elements
Dependencies are inferred from the claim text.